Java

Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.

Authors

Platform Independence
Object-Oriented
Multi-threading Support
Security
High Performance:
Integrated Development Environment (IDE) Support
Dynamic Loading and Extensibility

Important Topics
Object Oriented Paradigms GFG
Constructors in Java GFG
Constructor chaining in Java GFG
Inheritance in Java GFG
Overriding in Java GFG
Abstraction in Java GFG
Access modifiers in Java GFG
Wrapper Classes in Java GFG
Need of wrapper classes in Java GFG
this keyowrd in Java Javatpoint
Important keyowrds in Java inheritance - extends,implements,super,instanceof Tutorialspoint
Instance initializer block Javatpoint
Dynamic Method Dispatch or Runtime Polymorphism in Java GFG
Cohesion in Java GFG
Coupling in Java GFG

Can we declare main() method as private or protected or with no access modifier in java? Tutorialspoint
Difference between Method Overloading and Method Overriding in Java? GFG
Can we declare interface members as private or protected in java8? Tutorialspoint
Can we override a private or static method in Java? Tutorialspoint
What is diamond problem in Java? Javatpoint
Can we pass this keyword as argument in a method call? Javatpoint
Java constructor returns a value, but what? Javatpoint
What is covariant return type? Javatpoint
Private classes and singleton classes in Java GFG
How to prevent Singleton Pattern from Reflection, Serialization and Cloning? GFG
Double-Check Locking For Singleton Class GFG